Pipe construction



Oct. 9, 1934. R. s. BLAIR PIPE CONSTRUCTION Filed Aug. 20. 1930 [III/I IIIIlI/IIIJ.

NVENTOR Patented Oct. 9, 1934 rare omrso PIPE OoNs'rRUcTIoN Robert S.- Blair, Stamford, Conn. Application August 20, 1930, Serial No. 476,501

1 1 Claims.

This invention relates to smoking pipe construction. One of the objects thereof is to provide a practical device of the above nature of a construction which shall be strong and durable.

Another object is toprovide a device of the above nature which will automatically tend toward an upright position when resting on a flat surface. Another object is to provide a device of the above nature which will resist heat and tend to prevent the burning out of the material of which the bowl is formed. Another object is to provide a device of the above nature which shall be of easy manufacture and ready assembly. Another object is to provide a device of the above nature of lasting quality and sufficient strength to withstand the usual pounding incident to pipe smoking. Other objects will be in part obvious and in part pointed out.

The invention accordingly consists in the features of construction, combination of elements, and arrangement of parts which will be exemplified in the following specification, and the scope of the application of which will be indicated in the appended claims.

In the accompanying drawing in which is shown one of the various possible embodiments of this invention,

' Fig. 1 is a side elevation in cross section, showing in detail the pipe construction, 7

Fig. .2 is a sectional view taken along the line 2-'-2 of Fig. 3, showing in detail the construction at the base of the tobacco receptacle,

'Fig. 3 is a sectional view taken along 3- -3 of Fig. 1.

Similar references and characters refer to similar parts throughout the several views of the drawing. 7

Referring now to this drawing in detail, there is shown a tobacco receptacle 10, a wooden stem 12, and a fibre stem 13. At the base of the bowl 10 isa cavity 21 with a substantially larger diameter than the upper part of said bowl 10. Said cavity 21 extends up bowl 10 through substantially two-thirds of the diameter of the wooden stem 12, thus forming a shoulder 17 with walls 11.

A short distance above the shoulder 17 is a smoke outlet 9, and a smoke channel in the wooden stem 12. Said smoke channel 15 extends toward the fibre stem 13 at an angle to the axis of the wooden stem 12. In this manner the opening of the channel 15 at connecting point 16 is brought in substantial registry with the channel 14 of the fibre stem 13. Stem 13 may be secured to stem 12 by any desired means, such as a threadthe line the pipe to ed connecting portion 16.or by a wedge connection as is common in the art. 1 I

It should be noted that the opening 9 of channel 15 is slightly above the lower surface of. the tobacco receptacle 10, thus forming a stopping member 18. In this manner the semi-liquid substance which in common practice collects at the bottom of the tobacco receptacles is prevented from entering the channellS, thus finding its way toward the mouth of the smoker.

At the lowest extremity of cavity. 21, a small quantity of lead 23 is disposed so that it covers the entire area of said cavity 21 up to the height of its thickness. Directly on the upper surface of said lead 23, and forming a surface therefor, is a layer of fireproof cement so disposed that its upper surface will lie flush with shoulder 17. For this purpose a cement consisting of one part of sifted manganese peroxide, one part of pulverized zinc white and sufficient commercial soluble glass to form a thin paste has been found desirable. This paste when dried becomes very hard and will readily withstand heat. In this manner a hard heat-resistant surface 20 is formed for the lead 23 which will 30 withstand the various jars and blows incident to pipe smoking. Embedded in this cement 20 and covering its entire area in close proximity with its upper surface is a section of wire screening 18. I

By the above combination of parts an easily manufactured device of the above described character is constructed in which the lead 23 acts as a balancing weight for the pipe. Great difficulty has always been experienced in pipes of common construction because of the tendency of fall to one side when resting on a flat surface, thus spilling the ashes and ignited material on said surface. Considerable fire hazard results from such a practice as well as damage of more slight but nevertheless annoying character. This hazard is completely eliminated by the device of simple construction as above described. If the pipe falls to one side the center of gravity of the lead weight 23 will move out of its normal position The forces of gravity acting on this center of gravity will restore the pipe to a substantially upright position, thus avoiding the above noted disadvantages. The lining of fireproof cement, or heat-resistant material above the lead 23, has a two-fold function. By this durable combination the lead 23 is protected from the heat and the burning tobacco, and further, the wooden bottom of the tobacco receptacle 10 is protected from the burning tobacco, 11G

thus avoiding the burning through of said tom.

The screen 18 embedded in the fireproof cement 20 forms an added protection against the breakage of this material. Although cement of the above described composition is not easily broken, an extremely violent blow might break it. In this case the screen, the edges of which extend with the cement under the shoulder 1'7, would tend tohold the broken pieces of cement in position. Cement of this composition has been hotselected as the most durable and the most convenient material to be used in the above described construction, but it should be understood that the scope of this invention should not be limited to the use of this material for there are many other refractory substances which have been found to be suitable for this use.

As various changes may be made in the construction herein described, and as this invention may be embodied in materially different arrangements, it is to be understood that all matter herein set forth or shown in the accompanying drawing should be interpreted as illustrative and not in a limiting sense.

I claim:

1. In smoking pipe construction, in combination, a bowl having a convex lower external surface, and a quantity of relatively heavy material secured in the end portion .of said bowl in a downward extension of the bowl opening and tending to swing the same toward an upright position.

.2. In smoking pipe construction, in combination, a bowl having a convex lower external surface, a cavity in the inner walls of said bowl, and a relatively heavy material interlocking in said bowl at the lower portion thereof-with said walls and said cavity and positioned to tend to swing the bowl toward an upright position.

3. In smoking pipe construction, in combination, a bowl having an enlarged diameter at its lower extremity'forming acavity in the walls of said bowl and a relatively heavy material interlocking in said bowl with ;said walls and .said cavity.

4. In smoking .pipe construction, in combination, a bowl formed of material affected by heat, and heat resistant material secured in the walls of said bowl, said last material tapering in-thickness toward its outer edges.

5. In smoking pipe construction, in .combination, a quantity of relatively heavy material in the bottom of said bowl, a layer of heat'resistant material abovesaid heavy material, and means for securing said heavy material. andsaid heat resistant material therein.

6. In smoking pipe construction, in combination, a bowl, a cavity in the walls of said bowl, a quantity of relatively heavy material at the bottom of said bowl, and heat resistant material above said heavy material forming a surface therefor, the whole interlocking in said bowl with said walls and said cavity.

7. In smoking pipe construction, in combination, a bowl, a quantity of heat resistant material at the bottom of said bowl, a wire screen embedded in said heat resistant material and means for securing the whole therein.

8. In smoking pipe construction, in combination, a bowl, a quantity of relatively heavy material at the bottom of said bowl, a portion of heat resistant material forming a surface for said heavy material, a screen embedded in said heat resistant material, and means for securing the whole therein.

,9. In smoking pipe construction, in combination, a bowl having a cavity in its walls, a quantity of heat resistant material substantially at the bottom of said bowl and interlocking with said cavity and said walls and a screen embedded in said heat resistant material.

10. In smoking pipe construction, in combination, a bowl having cavities in-its walls, a quantity of relatively heavy material in said .bowl, a quantity of heat resistant material forming a surface for said heavy material, and a screen embedded in said heat resistant material and covering its entire area, the whole interlocking with said cavities and said walls.

11. In smoking pipe construction, incombination, a bowl having a cavity in its walls, a quantity of lead at the bottom of said bowl, a quantity of heat-resistant cement above said lead and form'- ing a surface therefor, and a section of wire screen embedded in said fireproof cement and 110 covering its entire area, the whole interlocking with said cavity and said walls.

12. In smoking pipe construction, in combination, a wooden pipe having a lower roundedsurface and a member of relatively heavy material mounted in the lower portion of said pipe and tending to swing the bowl thereof toward an upright position with the pipe resting on a flat surface, said material tapering in thickness :toward its outer edges and having its maximumthickness substantially opposite the lowermost portion of said rounded surface.

13. In smoking pipe construction, in combina tion, a bowl having a convex lower outer surface having positioned at the lower end of the bowl 125 opening a mass of relatively heavy heat-resistant material fixed in position and forming a floor to the bowl and adapted'to tend to swing the bowl toward an upright position with the pipe resting on a flat surface. 130

14. In smoking pipe construction, in combination, a bowl having a mass of lead or the like at the lower end of the bowl opening and aprotective coveringmedium positioned over said lead and exposed to the interior of the bowl.

ROBERT S. BLAIR. 

